Find loose slot spots in casinos.\n\n Slots in the crosswalk, or areas that other players must cross through to reach other parts of the casino, are famously loose. Keep in mind that this is just a theory. Don't stick to a bad machine just because it's in a high payout location.
The loose machines are also at the ends of the aisles to draw players into the aisle, where the tight machines are. And, of course, a loose machine is always surrounded by tight machines. You never have two loose machines side by side. That's done for players who like to play more than one machine at a time.